diff options
| -rw-r--r-- | src/amd/vulkan/radv_formats.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c index bee1c57e610..5af172c8e7f 100644 --- a/src/amd/vulkan/radv_formats.c +++ b/src/amd/vulkan/radv_formats.c @@ -1032,10 +1032,22 @@ bool radv_format_pack_clear_color(VkFormat format, assert(channel->size == 8); v = util_format_linear_float_to_srgb_8unorm(value->float32[c]); - } else if (channel->type == VK_FORMAT_TYPE_UNSIGNED) { - v = MAX2(MIN2(value->float32[c], 1.0f), 0.0f) * ((1ULL << channel->size) - 1); - } else { - v = MAX2(MIN2(value->float32[c], 1.0f), -1.0f) * ((1ULL << (channel->size - 1)) - 1); + } else { + float f = MIN2(value->float32[c], 1.0f); + + if (channel->type == VK_FORMAT_TYPE_UNSIGNED) { + f = MAX2(f, 0.0f) * ((1ULL << channel->size) - 1); + } else { + f = MAX2(f, -1.0f) * ((1ULL << (channel->size - 1)) - 1); + } + + /* The hardware rounds before conversion. */ + if (f > 0) + f += 0.5f; + else + f -= 0.5f; + + v = (uint64_t)f; } } else if (channel->type == VK_FORMAT_TYPE_FLOAT) { if (channel->size == 32) { |